Rosin reduced pressure distillation device

By using a combination of stirring rod and fixed frame lifting structure in the rosin vacuum distillation device, the problem of liquid film affecting heat transfer is solved, achieving a more efficient distillation effect and improving the homogenization and heating effect of the material.

CN121731791APending Publication Date: 2026-03-27LONGYAN XUSONG NEW MATERIALS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-04
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

In existing rosin vacuum distillation apparatuses, the formation of a liquid film at the bottom of the inner cavity of the vessel during the heating process affects the distillation efficiency, resulting in poor heat transfer.

Method used

The system uses a combination of stirring rod and fixed frame inside the vessel. The hollow shaft is rotated by the drive component, and the fixed frame is raised and lowered by the lifting component to clean the surface of the heater and stir the material. Combined with the inclined feeding plate and blade cutting, it avoids material deposition and adhesion.

Benefits of technology

It improves distillation efficiency, avoids the influence of liquid film on heater surface on heat transfer, enhances material homogenization, and improves heating and distillation effects.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121731791A_ABST
    Figure CN121731791A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of rosin distillation, in particular to a rosin reduced pressure distillation device which comprises a kettle body, a mounting seat is fixedly connected to the bottom of the kettle body, a plurality of uniformly distributed mounting holes are formed in the surface of the mounting seat and used for mounting the whole device, and a heater is fixedly mounted at the bottom of an inner cavity of the kettle body and used for heating materials. A hollow shaft penetrates through the top of the kettle body, a plurality of uniformly distributed stirring rods are fixedly mounted on the lower side of the outer wall of the hollow shaft, and one side of the top of the kettle body is communicated with a cooling and recycling assembly which is used for cooling and recycling steam. When the driving assembly drives the hollow shaft to rotate, the lifting assembly can be driven to drive the hollow shaft to ascend and descend, so that materials can be transversely stirred while cutting force can be formed in the longitudinal direction, the stirring effect is improved, the homogenization degree of the materials in the kettle body is high, and the distillation effect is improved.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of turpentine distillation, in particular to a turpentine vacuum distillation device. BACKGROUND

[0002] Turpentine is a natural resin secreted by coniferous trees such as pines, mainly composed of rosin (resin acid) and turpentine (terpenes), which is an opaque viscous liquid. Turpentine vacuum distillation is a purification process that separates turpentine from rosin in a vacuum environment. By reducing the pressure in the distillation system, the boiling point of turpentine is significantly lower than that under normal pressure, so that volatile turpentine vapor can be separated at a lower temperature, while high-boiling rosin remains at the bottom of the kettle. This method effectively avoids the deepening of color and the decline in quality caused by oxidation or isomerization of rosin at high temperatures.

[0003] The existing turpentine vacuum distillation device needs to be used when turpentine is subjected to vacuum distillation treatment. When the device is in use, the turpentine is heated in the kettle body, and the heater at the bottom of the kettle body is used for heating. Turpentine is prone to form a liquid film on the heat transfer surface, which will affect the distillation efficiency. Therefore, we propose a turpentine vacuum distillation device. SUMMARY

[0004] The purpose of the present application is to provide a turpentine vacuum distillation device that solves the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a turpentine vacuum distillation device, comprising a kettle body, the bottom of the kettle body is fixedly connected with a mounting seat, a plurality of uniformly distributed mounting holes are formed on the surface of the mounting seat for mounting the device as a whole, a heater is fixedly installed at the bottom of the kettle body for heating the material, a hollow shaft penetrates the top of the kettle body, a plurality of uniformly distributed stirring rods are fixedly installed on the outer wall of the lower side of the hollow shaft, a cooling and recycling assembly is communicated with one side of the top of the kettle body for cooling and recycling the steam. The tail end of the hollow shaft is inserted with a square column, the tail end of the square column is fixedly connected with a fixing frame, and the outer wall of the hollow shaft is connected with a driving assembly on the upper side for driving the hollow shaft to rotate. Further comprising a lifting assembly for driving the square column to lift.

[0006] By adopting the technical scheme, firstly, the material is introduced into the inner cavity of the kettle body through the feeding pipe, then heated by the heater, then the material heated to produce steam moves upward, then enters the cooling and recycling assembly for cooling, and the cooled material is collected, and in the distillation process, the hollow shaft is driven to rotate by the driving assembly, so that the material can be stirred by the stirring rod, thereby improving the distillation effect, and in the stirring process, the square column can be lifted by the lifting assembly, so that the fixing frame can be attached to the top of the heater after descending, thereby realizing cleaning of the surface of the heater in the rotating state, thereby facilitating avoiding the existence of liquid film on the surface of the heater affecting heat transfer, and scraping off the material to avoid accumulation on the heater affecting the heating effect, thereby further improving the effect of heating and distilling the material.

[0007] As a preferred embodiment of the present application, the driving assembly comprises a first servo motor fixedly installed on the top of the kettle body, a first gear fixedly connected to the outer end of the transmission shaft of the first servo motor, a second gear engaged with the outer wall of the first gear, and the second gear fixedly sleeved on the outer wall of the hollow shaft. The first gear is driven to rotate by the first servo motor, thereby driving the second gear to rotate, and further driving the hollow shaft to rotate, thereby driving the stirring rod to rotate and stir the material.

[0008] As a preferred embodiment of the present application, a pressure reducing assembly is installed on one side of the top of the kettle body, the pressure reducing assembly comprises a pressure reducing pump, the output end of the pressure reducing pump is fixedly communicated with a conduit, the conduit is communicated with the top of the kettle body, and a pressure sensor is fixedly installed on the top of the kettle body. The pressure reducing pump can reduce the pressure of the kettle body, thereby improving the distillation efficiency, and the pressure sensor monitors the pressure in the inner cavity of the kettle body and feeds back data to the industrial computer, ensuring the accuracy of the pressure reduction effect.

[0009] As a preferred embodiment of the present application, the cooling and recycling assembly comprises a recycling pipe, the tail end of the recycling pipe is fixedly communicated with a gas-liquid separator, the tail end of the gas-liquid separator is communicated with a collection container, the outer wall of the recycling pipe is sleeved with a cooling pipe, the outer wall of the cooling pipe is respectively communicated with a liquid inlet pipe and a liquid outlet pipe on both sides, and the steam entering the recycling pipe is cooled by the liquid inlet pipe and the liquid outlet pipe on the cooling pipe, so that the steam is liquefied and then separated in the gas-liquid separator, so that the liquid can be collected in the collection container.

[0010] As a preferred embodiment of the present application, the lifting assembly comprises a push rod, the push rod is inserted into the inner cavity of the hollow shaft, extends downward from top to the square column, and the tail end of the push rod is rotationally connected with the top of the square column, one side of the push rod is provided with a holder, the holder is fixedly installed on the top of the kettle body, a second servo motor is fixedly installed on the top of the holder, the transmission shaft of the second servo motor is movably penetrated through the holder and is fixedly connected with a lead screw, the tail end of the lead screw is inserted into a threaded hole at the top of the push rod, in actual use, the second servo motor drives the lead screw to rotate, thereby driving the push rod to lift, thereby driving the square column to lift, indirectly driving the fixing frame to lift, and when the hollow shaft rotates, the square column rotates, the bottom of the push rod is rotationally connected with the square column, thereby not affecting the rotation.

[0011] As a preferred embodiment of the present application, a limiting sliding groove is formed in one side wall of the holder, a limiting sliding block matched with the limiting sliding groove is inserted into the limiting sliding groove, and the outer wall of the limiting sliding block is fixedly connected with the push rod through a connecting rod, so that the lifting track of the push rod can be limited, thereby ensuring the stability of the lifting of the push rod.

[0012] As a preferred embodiment of the present application, obliquely arranged stirring plates are fixedly installed on the upper and lower side walls of the fixing frame, the stirring plates on the two side walls of the fixing frame are obliquely arranged, thereby forming a stirring of the material at the bottom, so that the material has a tendency to move upward, thereby being beneficial to avoid the deposition of the material at the bottom to affect the distillation, and after the fixing frame is lowered, the stirring plate at the lower side can be attached to the bottom of the kettle body to shovel the deposited material, thereby being beneficial to further reduce the deposition of the material.

[0013] As a preferred embodiment of the present application, strip-shaped holes are formed in the surfaces of the stirring plates, blades are fixedly installed in the inner cavities of the strip-shaped holes, and the blades are obliquely arranged, in the process of stirring, part of the material passes through the strip-shaped holes and is cut by the blades in the strip-shaped holes, thereby breaking the material, which is beneficial to avoid the adhesion of the material, thereby being beneficial to further improve the effect of the heating and distillation of the material.

[0014] As a preferred embodiment of the present application, a thermometer is throughly installed on the side of the top of the kettle body close to the cooling and recycling assembly, the thermometer is arranged to enable the temperature to be monitored.

[0015] As a preferred embodiment of the present application, a discharge pipe is fixedly and communicatively connected to one side of the bottom of the kettle body, a control valve is cooperatively installed on the discharge pipe, and a control valve is cooperatively installed on the discharge pipe, thereby enabling the material to be discharged after use by opening the control valve.

[0016] Compared with the prior art, the present application has the following advantages: The rosin vacuum distillation apparatus of this application can drive the lifting component to lift the hollow shaft when the driving component drives the hollow shaft to rotate. This can achieve horizontal stirring of the material while forming a cutting force in the longitudinal direction, which is conducive to improving the stirring effect. This results in a high degree of homogenization of the material in the vessel, which in turn is conducive to improving the distillation effect. As the hollow shaft descends, the fixing frame descends accordingly, allowing it to fit against the top and side walls of the heater. During rotation, the fixing frame cleans the heater surface, preventing liquid films from affecting heat transfer and scraping away material to avoid accumulation on the heater and affecting heating efficiency. This further enhances the heating and distillation effect of the material. The inclined material-pushing plates on both sides of the fixed frame can agitate the material at the bottom, giving it an upward tendency. This helps to prevent the material from settling at the bottom and affecting distillation. At the same time, after the fixed frame is lowered, the material-pushing plates on the lower side can fit against the bottom of the vessel and scoop up the settled material, which further helps to reduce material deposition. During the feeding process, some material passes through the strip-shaped holes and is cut by the blades inside the holes, thus breaking the material apart. This helps to prevent the material from sticking together and further improves the heating and distillation effect of the material. Attached Figure Description

[0017] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the first overall structure of the rosin vacuum distillation apparatus of the present invention; Figure 2 This is a cross-sectional schematic diagram of the rosin vacuum distillation apparatus of the present invention; Figure 3 This is an enlarged structural schematic diagram of A in the rosin vacuum distillation apparatus of the present invention; Figure 4 This is a schematic diagram of the second overall structure of the rosin vacuum distillation apparatus of the present invention; Figure 5 This is an enlarged structural schematic diagram of B in the rosin vacuum distillation apparatus of the present invention; Figure 6 This is a cross-sectional view of the hollow shaft structure of the rosin vacuum distillation apparatus of the present invention.

[0018] In the picture: 1. Reactor body; 11. Mounting base; 12. Heater; 13. Recovery pipe; 14. Gas-liquid separator; 15. Collection container; 16. Cooling pipe; 17. Liquid inlet pipe; 18. Liquid outlet pipe; 2, hollow shaft; 21, second gear; 22, first gear; 23, first servo motor; 24, stirring rod; 25, square column; 26, fixing frame; 27, paddle; 28, blade; 3, push rod; 31, screw rod; 32, second servo motor; 33, retainer; 34, limit slide; 4, catheter; 41, pressure reducing pump; 42, pressure sensor. DETAILED DESCRIPTION

[0019] Please refer to Figures 1-6 The present application provides a technical scheme: a turpentine pressure reducing distillation device, comprising a kettle body 1, the bottom of the kettle body 1 is fixedly connected with a mounting seat 11, a plurality of mounting holes are formed on the surface of the mounting seat 11 for mounting the device as a whole, a heater 12 is fixedly installed at the bottom of the inner cavity of the kettle body 1 for heating the material, a hollow shaft 2 penetrates through the top of the kettle body 1, a plurality of stirring rods 24 are fixedly installed on the outer wall of the lower side of the hollow shaft 2, a cooling and recycling assembly is communicated with one side of the top of the kettle body 1 for cooling and recycling the steam. The tail end of the hollow shaft 2 is inserted into the square column 25, the tail end of the square column 25 is fixedly connected with the fixing frame 26, and the outer wall of the hollow shaft 2 is connected with a driving assembly on the upper side for driving the hollow shaft 2 to rotate. It also includes a lifting assembly for driving the square column 25 to lift.

[0020] It should be noted that the kettle body 1 is connected with a feeding pipe as prior art and is shown in the text.

[0021] It should be understood that in actual use, the material is first introduced into the inner cavity of the kettle body 1 through the feeding pipe, then heated by the heater 12, then the steam generated by the heating of the material moves upward, then enters the cooling and recycling assembly for cooling, and the cooled material is collected, and in the process of distillation, the hollow shaft 2 is driven to rotate by the driving assembly, so that the stirring rod 24 can be used to stir the material, thereby improving the distillation effect, and in the process of stirring, the square column 25 can be lifted by the lifting assembly, so that the fixing frame 26 can be attached to the top of the heater 12 after descending, so that the surface of the heater 12 can be cleaned in the rotating state, thereby avoiding the influence of liquid film on the surface of the heater 12 on heat transfer, and scraping off the material to avoid accumulation on the heater 12 affecting the heating effect, thereby further improving the effect of heating and distillation of the material.

[0022] Further, the bottom side of the kettle body 1 is fixedly communicated with a discharge pipe, and a control valve is installed on the discharge pipe, so that after use, the control valve can be opened to discharge the material.

[0023] Further, the kettle body 1 top near the cooling recovery assembly side through type installation has thermometer, the thermometer setting, can monitor temperature.

[0024] As shown in Figure 1 and 2 , the drive assembly includes a first servo motor 23, the first servo motor 23 is fixedly installed on the top of the kettle body 1, the outer end of the transmission shaft of the first servo motor 23 is fixedly connected with the first gear 22, the outer wall of the first gear 22 is engaged with the second gear 21, the second gear 21 is fixedly sleeved on the outer wall of the hollow shaft 2. It should be understood that the first gear 22 is driven to rotate by the first servo motor 23, so as to drive the second gear 21 to rotate, thereby realizing the rotation of the hollow shaft 2, and then realizing the rotation of the stirring rod 24 to stir the material.

[0025] As shown in Figure 1 , the kettle body 1 top side is provided with a pressure reducing assembly, the pressure reducing assembly includes a pressure reducing pump 41, the output end of the pressure reducing pump 41 is fixedly communicated with a conduit 4, the conduit 4 is communicated with the top of the kettle body 1, and a pressure sensor 42 is fixedly installed on the top of the kettle body 1. It should be understood that the pressure reducing pump 41 can realize the pressure reduction of the kettle body 1, so as to facilitate the improvement of the distillation efficiency, and the pressure sensor 42 is used to monitor the pressure in the cavity of the kettle body 1, and the data is fed back to the industrial computer, so as to ensure the accuracy of the pressure reduction effect.

[0026] As shown in Figure 1 and 2 , the cooling recovery assembly includes a recovery pipe 13, the tail end of the recovery pipe 13 is fixedly communicated with a gas-liquid separator 14, the tail end of the gas-liquid separator 14 is communicated with a collection container 15, the outer wall of the recovery pipe 13 is sleeved with a cooling pipe 16, the outer wall of the cooling pipe 16 is communicated with a liquid inlet pipe 17 and a liquid outlet pipe 18 respectively. It should be understood that after the steam enters the recovery pipe 13, the liquid inlet pipe 17 on the cooling pipe 16 is used to enter the liquid, and the liquid outlet pipe 18 is used to outlet the liquid, so as to realize the cooling of the steam, so as to be liquefied, and then enter the gas-liquid separator 14 to separate, so that the liquid can enter the collection container 15 to be collected.

[0027] As shown in Figure 1 and 4, 5, 6, the lifting assembly includes a push rod 3, the push rod 3 is inserted into the cavity of the hollow shaft 2, extends from top to bottom to the square column 25, and the tail end and the top of the square column 25 are rotationally connected, one side of the push rod 3 is provided with a retainer 33, the retainer 33 is fixedly installed on the top of the kettle body 1, the top of the retainer 33 is fixedly installed with a second servo motor 32, the transmission shaft of the second servo motor 32 is movably penetrated through the retainer 33 and is fixedly connected with a lead screw 31, the tail end of the lead screw 31 is inserted into the threaded hole at the top of the push rod 3.

[0028] It should be understood that, in actual use, the lead screw 31 is driven to rotate by the second servo motor 32, so that the push rod 3 can be driven to lift, so that the square column 25 can be driven to lift, and the fixed frame 26 is indirectly driven to lift, and when the hollow shaft 2 rotates, the square column 25 rotates, the bottom of the push rod 3 and the square column 25 are rotationally connected, so as not to affect the rotation.

[0029] Further, one side wall of the retainer 33 is provided with a limiting sliding groove, and a limiting sliding block 34 is inserted into the limiting sliding groove, and the outer wall of the limiting sliding block 34 is fixedly connected with the push rod 3 through a connecting rod.

[0030] As shown in Figure 2 and 3 , the two side walls of the fixed frame 26 are fixedly installed with inclined push plates 27. It should be understood that, by inclining the push plates 27 on the two side walls of the fixed frame 26, the bottom material can be pushed, so that the material can have a tendency to move upward, thereby avoiding the material from depositing on the bottom and affecting distillation.

[0031] Further, the surface of the push plate 27 is provided with a strip-shaped hole, and a blade 28 is fixedly installed in the strip-shaped hole. It should be understood that, during the pushing process, part of the material will pass through the strip-shaped hole and be cut by the blade 28 in the strip-shaped hole, so that the material is broken, which is beneficial to avoid material adhesion and further improve the effect of material heating and distillation.

[0032] In summary, the driving assembly can drive the lifting assembly to lift when driving the hollow shaft 2 to rotate, so that the material can be transversely stirred and a cutting force can be formed in the longitudinal direction, thereby improving the stirring effect, and the material in the kettle body is uniformly distributed, thereby improving the distillation effect. Through the hollow shaft 2 in the process of falling, the fixed frame 26 can be lowered, so that the fixed frame 26 can be attached to the top and side wall of the heater 12, and in the process of rotating, the fixed frame can realize the cleaning of the surface of the heater 12, thereby facilitating to avoid the existence of liquid film on the surface of the heater 12 affecting heat transfer, and scraping off the material to avoid accumulation on the heater 12 affecting the heating effect, thereby facilitating to further improve the effect of heating distillation of the material; Through the inclined arrangement of the material stirring plate 27 on both sides of the fixed frame 26, the stirring of the material at the bottom can be formed, so that the material can have an upward movement trend, thereby facilitating to avoid the deposition of the material on the bottom affecting the distillation, and the material stirring plate 27 located at the lower side after the fixed frame 26 is lowered can be attached to the bottom of the kettle body 1, and the deposited material is scooped up, thereby facilitating to further reduce the deposition of the material. Through the material stirring plate 27 in the process of stirring, part of the material will pass through the strip-shaped hole, so as to be cut by the blade 28 in the strip-shaped hole, thereby breaking the material, facilitating to avoid the adhesion of the material, and thereby facilitating to further improve the effect of heating distillation of the material.

[0033] In addition, the components included in the pine tar reduced pressure distillation device of the present application are all general standard parts or parts known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through conventional experimental methods. At the idle place of the device, all the electrical components, power elements, electrical components, and the adapted monitoring computer and power supply are connected by wires. The specific connection means should refer to the working principle described below. The electrical components are connected in sequence to complete the electrical connection. The detailed connection means is a known technology in the art. The working principle and process are mainly introduced below, and the electrical control is not described.

Claims

1. A rosin vacuum distillation apparatus, comprising a vessel body (1), characterized in that: The bottom of the vessel body (1) is fixedly connected to a mounting base (11). The surface of the mounting base (11) is provided with multiple evenly distributed mounting holes for installing the entire device. A heater (12) is fixedly installed at the bottom of the inner cavity of the vessel body (1) for heating the material. A hollow shaft (2) passes through the top of the vessel body (1). Multiple evenly distributed stirring rods (24) are fixedly installed on the lower side of the outer wall of the hollow shaft (2). A cooling recovery assembly is connected to one side of the top of the vessel body (1) for cooling and recovering steam. A square column (25) is inserted into the tail end of the hollow shaft (2), and a fixing frame (26) is fixedly connected to the tail end of the square column (25). A drive assembly is connected to the upper side of the outer wall of the hollow shaft (2) for driving the hollow shaft (2) to rotate. It also includes a lifting assembly for driving the square column (25) to rise and fall.

2. The rosin vacuum distillation apparatus according to claim 1, characterized in that: The drive assembly includes a first servo motor (23), which is fixedly installed on the top of the vessel body (1). A first gear (22) is fixedly connected to the outer end of the drive shaft of the first servo motor (23). A second gear (21) meshes with the outer wall of the first gear (22). The second gear (21) is fixedly fitted onto the outer wall of the hollow shaft (2).

3. The rosin vacuum distillation apparatus according to claim 1, characterized in that: A pressure reducing assembly is installed on one side of the top of the vessel body (1). The pressure reducing assembly includes a pressure reducing pump (41), the output end of which is fixedly connected to a conduit (4). The conduit (4) is connected to the top of the vessel body (1). It also includes a pressure sensor (42), which is fixedly installed through the top of the vessel body (1).

4. The rosin vacuum distillation apparatus according to claim 1, characterized in that: The cooling recovery assembly includes a recovery pipe (13), the tail end of which is fixedly connected to a gas-liquid separator (14), the tail end of which is connected to a collection container (15), and a cooling pipe (16) is fitted on the outer wall of the recovery pipe (13). The outer walls of the cooling pipe (16) are respectively connected to an inlet pipe (17) and an outlet pipe (18).

5. The rosin vacuum distillation apparatus according to claim 1, characterized in that: The lifting assembly includes a push rod (3), which is inserted into the inner cavity of the hollow shaft (2) and extends downward to the square column (25). Its tail end is rotatably connected to the top of the square column (25). A retainer (33) is provided on one side of the push rod (3). The retainer (33) is fixedly installed on the top of the vessel body (1). A second servo motor (32) is fixedly installed on the top of the retainer (33). The drive shaft of the second servo motor (32) movably passes through the retainer (33) and is fixedly connected to a lead screw (31). The tail end of the lead screw (31) is inserted into a threaded hole adapted to the top of the push rod (3).

6. The rosin vacuum distillation apparatus according to claim 5, characterized in that: The retainer (33) has a limiting groove on one side wall, and a matching limiting slider (34) is inserted into the inner cavity of the limiting groove. The outer wall of the limiting slider (34) is fixedly connected by a connecting rod and a push rod (3).

7. The rosin vacuum distillation apparatus according to claim 1, characterized in that: The fixed frame (26) has inclined material-pulling plates (27) fixedly installed on both sides of the upper and lower sides.

8. The rosin vacuum distillation apparatus according to claim 1, characterized in that: The feed plate (27) has strip-shaped holes on both sides of its surface, and a blade (28) is fixedly installed in the inner cavity of the strip-shaped hole. The blade (28) is set at an angle.

9. The rosin vacuum distillation apparatus according to claim 1, characterized in that: A thermometer is installed through the top of the vessel (1) on the side near the cooling recovery component.

10. The rosin vacuum distillation apparatus according to claim 1, characterized in that: The bottom side of the vessel body (1) is fixedly connected to a discharge pipe, and a control valve is installed on the discharge pipe.